Sawers are long-ranged weapons developed for Xero. The blades around this weapon move non-stop, simulating a chainsaw. Although it was designed for long ranged purposes, it can also be used as a melee weapon.
Xero is seen using these throughout part one. They are never seen again after that.
Xionic Madness 3Edit
The Nightstar, an upgraded form of the Sawer was seen being used by Xero throughout the episodes.